- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
82 entries under stern topic. ×
| strict(adjective, feature, strong, hard, tough) | |
| severe(adjective, strong, hard, tough, correct) | |
| rigid(adjective, strong, hard, tough, correct) | |
| stringent(adjective, hard, tough, severe, rough) | |
| harsh(adjective, strong, hard, tough, severe) | |
| scrupulous(adjective, feature, hard, tough, correct) | |
| hard(adjective, strong, tough, severe, rough) | |
| exacting(adjective, hard, tough, severe, fine) | |
| demanding(adjective, hard, severe, rough, difficult) | |
| inflexible(adjective, strong, hard, tough, severe) | |
| punctilious(adjective, hard, tough, correct, severe) | |
| austere(adjective, strong, hard, tough, severe) | |
| stiff(adjective, hard, severe, rough, difficult) | |
| close(adjective, feature, correct, slight, harsh) | |
| uncompromising(adjective, hard, severe, rough, difficult) | |
| difficult(adjective, hard, severe, rough, harsh) | |
| tough(adjective, strong, hard, severe, rough) | |
| obdurate(adjective, strong, hard, tough, severe) | |
| sharp(noun, adjective, correct, severe, harsh) | |
| tight(adjective, severe, careful, rigid, strict) |
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| APA | Smart Define. (2016). rigorous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, rigorous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "rigorous thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/rigorous/thesaurus/synonyms> |